diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/alpha/kernel/sys_cabriolet.c')
| -rw-r--r-- | ANDROID_3.4.5/arch/alpha/kernel/sys_cabriolet.c | 443 |
1 files changed, 0 insertions, 443 deletions
diff --git a/ANDROID_3.4.5/arch/alpha/kernel/sys_cabriolet.c b/ANDROID_3.4.5/arch/alpha/kernel/sys_cabriolet.c deleted file mode 100644 index 4c50f8f4..00000000 --- a/ANDROID_3.4.5/arch/alpha/kernel/sys_cabriolet.c +++ /dev/null @@ -1,443 +0,0 @@ -/* - * linux/arch/alpha/kernel/sys_cabriolet.c - * - * Copyright (C) 1995 David A Rusling - * Copyright (C) 1996 Jay A Estabrook - * Copyright (C) 1998, 1999, 2000 Richard Henderson - * - * Code supporting the Cabriolet (AlphaPC64), EB66+, and EB164, - * PC164 and LX164. - */ - -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/mm.h> -#include <linux/sched.h> -#include <linux/pci.h> -#include <linux/init.h> -#include <linux/bitops.h> - -#include <asm/ptrace.h> -#include <asm/dma.h> -#include <asm/irq.h> -#include <asm/mmu_context.h> -#include <asm/io.h> -#include <asm/pgtable.h> -#include <asm/core_apecs.h> -#include <asm/core_cia.h> -#include <asm/core_lca.h> -#include <asm/tlbflush.h> - -#include "proto.h" -#include "irq_impl.h" -#include "pci_impl.h" -#include "machvec_impl.h" -#include "pc873xx.h" - -/* Note mask bit is true for DISABLED irqs. */ -static unsigned long cached_irq_mask = ~0UL; - -static inline void -cabriolet_update_irq_hw(unsigned int irq, unsigned long mask) -{ - int ofs = (irq - 16) / 8; - outb(mask >> (16 + ofs * 8), 0x804 + ofs); -} - -static inline void -cabriolet_enable_irq(struct irq_data *d) -{ - cabriolet_update_irq_hw(d->irq, cached_irq_mask &= ~(1UL << d->irq)); -} - -static void -cabriolet_disable_irq(struct irq_data *d) -{ - cabriolet_update_irq_hw(d->irq, cached_irq_mask |= 1UL << d->irq); -} - -static struct irq_chip cabriolet_irq_type = { - .name = "CABRIOLET", - .irq_unmask = cabriolet_enable_irq, - .irq_mask = cabriolet_disable_irq, - .irq_mask_ack = cabriolet_disable_irq, -}; - -static void -cabriolet_device_interrupt(unsigned long v) -{ - unsigned long pld; - unsigned int i; - - /* Read the interrupt summary registers */ - pld = inb(0x804) | (inb(0x805) << 8) | (inb(0x806) << 16); - - /* - * Now for every possible bit set, work through them and call - * the appropriate interrupt handler. - */ - while (pld) { - i = ffz(~pld); - pld &= pld - 1; /* clear least bit set */ - if (i == 4) { - isa_device_interrupt(v); - } else { - handle_irq(16 + i); - } - } -} - -static void __init -common_init_irq(void (*srm_dev_int)(unsigned long v)) -{ - init_i8259a_irqs(); - - if (alpha_using_srm) { - alpha_mv.device_interrupt = srm_dev_int; - init_srm_irqs(35, 0); - } - else { - long i; - - outb(0xff, 0x804); - outb(0xff, 0x805); - outb(0xff, 0x806); - - for (i = 16; i < 35; ++i) { - irq_set_chip_and_handler(i, &cabriolet_irq_type, - handle_level_irq); - irq_set_status_flags(i, IRQ_LEVEL); - } - } - - common_init_isa_dma(); - setup_irq(16+4, &isa_cascade_irqaction); -} - -#ifndef CONFIG_ALPHA_PC164 -static void __init -cabriolet_init_irq(void) -{ - common_init_irq(srm_device_interrupt); -} -#endif - -#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_PC164) -/* In theory, the PC164 has the same interrupt hardware as the other - Cabriolet based systems. However, something got screwed up late - in the development cycle which broke the interrupt masking hardware. - Repeat, it is not possible to mask and ack interrupts. At all. - - In an attempt to work around this, while processing interrupts, - we do not allow the IPL to drop below what it is currently. This - prevents the possibility of recursion. - - ??? Another option might be to force all PCI devices to use edge - triggered rather than level triggered interrupts. That might be - too invasive though. */ - -static void -pc164_srm_device_interrupt(unsigned long v) -{ - __min_ipl = getipl(); - srm_device_interrupt(v); - __min_ipl = 0; -} - -static void -pc164_device_interrupt(unsigned long v) -{ - __min_ipl = getipl(); - cabriolet_device_interrupt(v); - __min_ipl = 0; -} - -static void __init -pc164_init_irq(void) -{ - common_init_irq(pc164_srm_device_interrupt); -} -#endif - -/* - * The EB66+ is very similar to the EB66 except that it does not have - * the on-board NCR and Tulip chips. In the code below, I have used - * slot number to refer to the id select line and *not* the slot - * number used in the EB66+ documentation. However, in the table, - * I've given the slot number, the id select line and the Jxx number - * that's printed on the board. The interrupt pins from the PCI slots - * are wired into 3 interrupt summary registers at 0x804, 0x805 and - * 0x806 ISA. - * - * In the table, -1 means don't assign an IRQ number. This is usually - * because it is the Saturn IO (SIO) PCI/ISA Bridge Chip. - */ - -static inline int __init -eb66p_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) -{ - static char irq_tab[5][5] __initdata = { - /*INT INTA INTB INTC INTD */ - {16+0, 16+0, 16+5, 16+9, 16+13}, /* IdSel 6, slot 0, J25 */ - {16+1, 16+1, 16+6, 16+10, 16+14}, /* IdSel 7, slot 1, J26 */ - { -1, -1, -1, -1, -1}, /* IdSel 8, SIO */ - {16+2, 16+2, 16+7, 16+11, 16+15}, /* IdSel 9, slot 2, J27 */ - {16+3, 16+3, 16+8, 16+12, 16+6} /* IdSel 10, slot 3, J28 */ - }; - const long min_idsel = 6, max_idsel = 10, irqs_per_slot = 5; - return COMMON_TABLE_LOOKUP; -} - - -/* - * The AlphaPC64 is very similar to the EB66+ except that its slots - * are numbered differently. In the code below, I have used slot - * number to refer to the id select line and *not* the slot number - * used in the AlphaPC64 documentation. However, in the table, I've - * given the slot number, the id select line and the Jxx number that's - * printed on the board. The interrupt pins from the PCI slots are - * wired into 3 interrupt summary registers at 0x804, 0x805 and 0x806 - * ISA. - * - * In the table, -1 means don't assign an IRQ number. This is usually - * because it is the Saturn IO (SIO) PCI/ISA Bridge Chip. - */ - -static inline int __init -cabriolet_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) -{ - static char irq_tab[5][5] __initdata = { - /*INT INTA INTB INTC INTD */ - { 16+2, 16+2, 16+7, 16+11, 16+15}, /* IdSel 5, slot 2, J21 */ - { 16+0, 16+0, 16+5, 16+9, 16+13}, /* IdSel 6, slot 0, J19 */ - { 16+1, 16+1, 16+6, 16+10, 16+14}, /* IdSel 7, slot 1, J20 */ - { -1, -1, -1, -1, -1}, /* IdSel 8, SIO */ - { 16+3, 16+3, 16+8, 16+12, 16+16} /* IdSel 9, slot 3, J22 */ - }; - const long min_idsel = 5, max_idsel = 9, irqs_per_slot = 5; - return COMMON_TABLE_LOOKUP; -} - -static inline void __init -cabriolet_enable_ide(void) -{ - if (pc873xx_probe() == -1) { - printk(KERN_ERR "Probing for PC873xx Super IO chip failed.\n"); - } else { - printk(KERN_INFO "Found %s Super IO chip at 0x%x\n", - pc873xx_get_model(), pc873xx_get_base()); - - pc873xx_enable_ide(); - } -} - -static inline void __init -cabriolet_init_pci(void) -{ - common_init_pci(); - cabriolet_enable_ide(); -} - -static inline void __init -cia_cab_init_pci(void) -{ - cia_init_pci(); - cabriolet_enable_ide(); -} - -/* - * The PC164 and LX164 have 19 PCI interrupts, four from each of the four - * PCI slots, the SIO, PCI/IDE, and USB. - * - * Each of the interrupts can be individually masked. This is - * accomplished by setting the appropriate bit in the mask register. - * A bit is set by writing a "1" to the desired position in the mask - * register and cleared by writing a "0". There are 3 mask registers - * located at ISA address 804h, 805h and 806h. - * - * An I/O read at ISA address 804h, 805h, 806h will return the - * state of the 11 PCI interrupts and not the state of the MASKED - * interrupts. - * - * Note: A write to I/O 804h, 805h, and 806h the mask register will be - * updated. - * - * - * ISA DATA<7:0> - * ISA +--------------------------------------------------------------+ - * ADDRESS | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | - * +==============================================================+ - * 0x804 | INTB0 | USB | IDE | SIO | INTA3 |INTA2 | INTA1 | INTA0 | - * +--------------------------------------------------------------+ - * 0x805 | INTD0 | INTC3 | INTC2 | INTC1 | INTC0 |INTB3 | INTB2 | INTB1 | - * +--------------------------------------------------------------+ - * 0x806 | Rsrv | Rsrv | Rsrv | Rsrv | Rsrv |INTD3 | INTD2 | INTD1 | - * +--------------------------------------------------------------+ - * * Rsrv = reserved bits - * Note: The mask register is write-only. - * - * IdSel - * 5 32 bit PCI option slot 2 - * 6 64 bit PCI option slot 0 - * 7 64 bit PCI option slot 1 - * 8 Saturn I/O - * 9 32 bit PCI option slot 3 - * 10 USB - * 11 IDE - * - */ - -static inline int __init -alphapc164_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) -{ - static char irq_tab[7][5] __initdata = { - /*INT INTA INTB INTC INTD */ - { 16+2, 16+2, 16+9, 16+13, 16+17}, /* IdSel 5, slot 2, J20 */ - { 16+0, 16+0, 16+7, 16+11, 16+15}, /* IdSel 6, slot 0, J29 */ - { 16+1, 16+1, 16+8, 16+12, 16+16}, /* IdSel 7, slot 1, J26 */ - { -1, -1, -1, -1, -1}, /* IdSel 8, SIO */ - { 16+3, 16+3, 16+10, 16+14, 16+18}, /* IdSel 9, slot 3, J19 */ - { 16+6, 16+6, 16+6, 16+6, 16+6}, /* IdSel 10, USB */ - { 16+5, 16+5, 16+5, 16+5, 16+5} /* IdSel 11, IDE */ - }; - const long min_idsel = 5, max_idsel = 11, irqs_per_slot = 5; - return COMMON_TABLE_LOOKUP; -} - -static inline void __init -alphapc164_init_pci(void) -{ - cia_init_pci(); - SMC93x_Init(); -} - - -/* - * The System Vector - */ - -#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_CABRIOLET) -struct alpha_machine_vector cabriolet_mv __initmv = { - .vector_name = "Cabriolet", - DO_EV4_MMU, - DO_DEFAULT_RTC, - DO_APECS_IO, - .machine_check = apecs_machine_check, - .max_isa_dma_address = ALPHA_MAX_ISA_DMA_ADDRESS, - .min_io_address = DEFAULT_IO_BASE, - .min_mem_address = APECS_AND_LCA_DEFAULT_MEM_BASE, - - .nr_irqs = 35, - .device_interrupt = cabriolet_device_interrupt, - - .init_arch = apecs_init_arch, - .init_irq = cabriolet_init_irq, - .init_rtc = common_init_rtc, - .init_pci = cabriolet_init_pci, - .pci_map_irq = cabriolet_map_irq, - .pci_swizzle = common_swizzle, -}; -#ifndef CONFIG_ALPHA_EB64P -ALIAS_MV(cabriolet) -#endif -#endif - -#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_EB164) -struct alpha_machine_vector eb164_mv __initmv = { - .vector_name = "EB164", - DO_EV5_MMU, - DO_DEFAULT_RTC, - DO_CIA_IO, - .machine_check = cia_machine_check, - .max_isa_dma_address = ALPHA_MAX_ISA_DMA_ADDRESS, - .min_io_address = DEFAULT_IO_BASE, - .min_mem_address = CIA_DEFAULT_MEM_BASE, - - .nr_irqs = 35, - .device_interrupt = cabriolet_device_interrupt, - - .init_arch = cia_init_arch, - .init_irq = cabriolet_init_irq, - .init_rtc = common_init_rtc, - .init_pci = cia_cab_init_pci, - .kill_arch = cia_kill_arch, - .pci_map_irq = cabriolet_map_irq, - .pci_swizzle = common_swizzle, -}; -ALIAS_MV(eb164) -#endif - -#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_EB66P) -struct alpha_machine_vector eb66p_mv __initmv = { - .vector_name = "EB66+", - DO_EV4_MMU, - DO_DEFAULT_RTC, - DO_LCA_IO, - .machine_check = lca_machine_check, - .max_isa_dma_address = ALPHA_MAX_ISA_DMA_ADDRESS, - .min_io_address = DEFAULT_IO_BASE, - .min_mem_address = APECS_AND_LCA_DEFAULT_MEM_BASE, - - .nr_irqs = 35, - .device_interrupt = cabriolet_device_interrupt, - - .init_arch = lca_init_arch, - .init_irq = cabriolet_init_irq, - .init_rtc = common_init_rtc, - .init_pci = cabriolet_init_pci, - .pci_map_irq = eb66p_map_irq, - .pci_swizzle = common_swizzle, -}; -ALIAS_MV(eb66p) -#endif - -#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_LX164) -struct alpha_machine_vector lx164_mv __initmv = { - .vector_name = "LX164", - DO_EV5_MMU, - DO_DEFAULT_RTC, - DO_PYXIS_IO, - .machine_check = cia_machine_check, - .max_isa_dma_address = ALPHA_MAX_ISA_DMA_ADDRESS, - .min_io_address = DEFAULT_IO_BASE, - .min_mem_address = DEFAULT_MEM_BASE, - .pci_dac_offset = PYXIS_DAC_OFFSET, - - .nr_irqs = 35, - .device_interrupt = cabriolet_device_interrupt, - - .init_arch = pyxis_init_arch, - .init_irq = cabriolet_init_irq, - .init_rtc = common_init_rtc, - .init_pci = alphapc164_init_pci, - .kill_arch = cia_kill_arch, - .pci_map_irq = alphapc164_map_irq, - .pci_swizzle = common_swizzle, -}; -ALIAS_MV(lx164) -#endif - -#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_PC164) -struct alpha_machine_vector pc164_mv __initmv = { - .vector_name = "PC164", - DO_EV5_MMU, - DO_DEFAULT_RTC, - DO_CIA_IO, - .machine_check = cia_machine_check, - .max_isa_dma_address = ALPHA_MAX_ISA_DMA_ADDRESS, - .min_io_address = DEFAULT_IO_BASE, - .min_mem_address = CIA_DEFAULT_MEM_BASE, - - .nr_irqs = 35, - .device_interrupt = pc164_device_interrupt, - - .init_arch = cia_init_arch, - .init_irq = pc164_init_irq, - .init_rtc = common_init_rtc, - .init_pci = alphapc164_init_pci, - .kill_arch = cia_kill_arch, - .pci_map_irq = alphapc164_map_irq, - .pci_swizzle = common_swizzle, -}; -ALIAS_MV(pc164) -#endif |